Microscopically porous, interconnected single crystal LiNi1/3Co1/3Mn1/3O2cathode material for Lithium ion batteries

Zhen Dong Huang; Xian Ming Liu; Sei Woon Oh; Biao Zhang; Peng Cheng Ma; Jang Kyo Kim

doi:10.1039/c1jm00059d

Microscopically porous, interconnected single crystal LiNi_1/3Co_1/3Mn_1/3O₂cathode material for Lithium ion batteries

Zhen Dong Huang, Xian Ming Liu, Sei Woon Oh, Biao Zhang, Peng Cheng Ma, Jang Kyo Kim

Research output: Journal article publication › Journal article › Academic research › peer-review

210 Citations (Scopus)

Abstract

A porous cathode material consisting of interconnected single crystal LiNi1/3Co1/3Mn1/3O2(NCM) nanoparticles has been synthesized for lithium ion batteries. Trace nitric acid is used as pH value adjuster to form honeycomb-shaped foam, and a novel stepwise crystallization process is employed to obtain NCM particles. The modified sol-gel process followed by an optimized crystallization process results in significant improvements in chemical and physical characteristics of the NCM particles. They consist of a fully-developed single crystal NCM with uniform composition and a porous NCM architecture with a reduced degree of fusion and a large specific surface area. These structural modifications in turn significantly enhance the electrochemical properties of the NCM cathode material, in terms of improved charge/discharge capacity, cyclic stability and rate capability.

Original language	English
Pages (from-to)	10777-10784
Number of pages	8
Journal	Journal of Materials Chemistry
Volume	21
Issue number	29
DOIs	https://doi.org/10.1039/c1jm00059d
Publication status	Published - 7 Aug 2011
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1039/c1jm00059d

Cite this

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title = "Microscopically porous, interconnected single crystal LiNi1/3Co1/3Mn1/3O2cathode material for Lithium ion batteries",

abstract = "A porous cathode material consisting of interconnected single crystal LiNi1/3Co1/3Mn1/3O2(NCM) nanoparticles has been synthesized for lithium ion batteries. Trace nitric acid is used as pH value adjuster to form honeycomb-shaped foam, and a novel stepwise crystallization process is employed to obtain NCM particles. The modified sol-gel process followed by an optimized crystallization process results in significant improvements in chemical and physical characteristics of the NCM particles. They consist of a fully-developed single crystal NCM with uniform composition and a porous NCM architecture with a reduced degree of fusion and a large specific surface area. These structural modifications in turn significantly enhance the electrochemical properties of the NCM cathode material, in terms of improved charge/discharge capacity, cyclic stability and rate capability.",

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AU - Huang, Zhen Dong

AU - Liu, Xian Ming

AU - Oh, Sei Woon

AU - Zhang, Biao

AU - Ma, Peng Cheng

AU - Kim, Jang Kyo

PY - 2011/8/7

Y1 - 2011/8/7

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AB - A porous cathode material consisting of interconnected single crystal LiNi1/3Co1/3Mn1/3O2(NCM) nanoparticles has been synthesized for lithium ion batteries. Trace nitric acid is used as pH value adjuster to form honeycomb-shaped foam, and a novel stepwise crystallization process is employed to obtain NCM particles. The modified sol-gel process followed by an optimized crystallization process results in significant improvements in chemical and physical characteristics of the NCM particles. They consist of a fully-developed single crystal NCM with uniform composition and a porous NCM architecture with a reduced degree of fusion and a large specific surface area. These structural modifications in turn significantly enhance the electrochemical properties of the NCM cathode material, in terms of improved charge/discharge capacity, cyclic stability and rate capability.

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